For the given vectors u and v, calculate u ? v.u = 
, v = 
A. 22
B. 65
C. -9
D. -22
Answer: A
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Losses in a long telephone line reduce a 20-watt input signal to an output of 4 watts. Find the db gain. (Because it is a loss, the "gain" will be negative.) Round your answer to two decimal places. ?
A. -14.00 B. -6.94 C. -14.18 D. -6.99 E. none of these
Solve the given equation by finding the unknown value.? + 120 = 745
A. 635 B. 89,400 C. 625 D. 865
Multiply and simplify.
? 
A. 
B. 
C. - 
D. - 
Set the viewing rectangle of your graphing calculator to src="https://sciemce.com/media/4/ppg__adasd0528191748__f1q47g5.jpg" style="vertical-align: -17.0px;" />
A. A
B. K
C. I
D. H
by 
to solve the problem.Graph the following set of parametric equations for 0 ? t ? 2? and identify the letter of the alphabet that the graph resembles.x1 = -2,y1 = -5 + 
x2 = -2 + 
,y2 = -3.6x3 = -0.04,y3 = -5 +